(Not Mapbox [1], but) have you looked at https://www.qwant.com/maps/ ?
Looks and feels a bit like Google Maps. I don’t know about traffic data, though.
[1]: Qwant uses https://openmaptiles.org/
[1]: Qwant uses https://openmaptiles.org/
I've found their maps are very slow here in Australia (I assume their infra is Europe based), and the I find the geocoding frequently gives me objects in other countries when I know OSM has an object with that exact name in my map view, but I check up on it every so often.
Qwant is a French company, so yes: https://about.qwant.com/en/contact